Furious victims insist he is still a danger — and say the Government’s climbdown has forced them to launch their own challenge. Proceedings could be launched early next week in the hope the fiend remains behind bars for at least three more months.

She added: “We intend to launch judicial review proceedings against the Parole Board next week. The two women are convinced Worboys remains a danger. They bring this case in the wider public interest.”

Justice Secretary David Gauke stunned MPs by saying it would not be appropriate to seek a judicial review.

He added: “It is crucial that the decision to release this manipulative, calculating and dangerous man can be considered by the courts as soon as possible.

“It is also imperative that the failure to prosecute more cases against Worboys is re-examined.”

PREDATOR TARGETED OVER 200 WOMEN

Worboys' timeline from known crimes to decision to release him

OCT 2006: First victim drugged by Worboys.FEB 2008: Charged with offences against 12 women.2009: Croydon crown court convicts him of one rape, five sex assaults and 12 drugging charges. Must serve at least eight years before being eligible for parole.2010: Met Police reveals it has received 102 more complaints from women. Detectives now fear the beast may have drugged and attacked more than 200 female passengers.2014: Two victims get damages from the Met after a High Court judge rules that failings in cop probe breached human rights.2015: Worboys loses first parole bid. Met also fails in appeal against 2014 High Court ruling.2017: Met and Home Office challenge damages ruling at Supreme Court. Worboys launches second parole bid.JAN 3, 2018: Parole board orders his release.

A Tory minister blasted the Government last night, saying: “Politics is about testing the system and on something like this, whether you win or lose is secondary to having tried. Clearly something went very wrong in this case, and for the sake of £50,000 (legal costs), we will never find out what.”

London Mayor Sadiq Khan told lawyers to launch a separate legal challenge against the Board.

Face of evil... many of the rapist's victims are worried that Worboys targeted hundreds more women

He said: “I am deeply concerned and unhappy about the prospect of John Worboys’ impending release.”

Mr Khan was praised by his former mayoral rival, Tory Zac Goldsmith, who said he was “hugely disappointed” by his own Government.

Another Tory claimed the Ministry of Justice was worried a review would lift the lid on claims of its own failings in the case. And former Labour justice secretary Lord Falconer said Mr Gauke had “left everybody high and dry”.

Lord Falconer said he went against Ministry of Justice advice several times when in the job.

Justice Secretary David Gauke announces the Government won't launch judicial review into the decision to grant parole to John Worboys

He insisted the Parole Board process was unlawful and should have been challenged.

Worboys was jailed indefinitely in 2009, with a minimum term of eight years, for drugging and sexually assaulting passengers.

The Sun revealed two weeks ago how the Board ruled late last year that Worboys was no longer a danger.

Decision is kept secret

A JUDICIAL review is where a judge looks at the lawfulness of a decision made by a public body — in this case the Parole Board.

It is less about whether the decision was right or wrong, but whether proper procedures were followed to reach the decision.

The reason David Gauke ditched plans to have a judicial review of the Worboys case will never be known as legal advice is always confidential.

But the Parole Board is part of the ministry he is responsible for which makes the review harder to justify from within his department.

The Government had been considering a legal challenge.

Mr Gauke was met with a stony silence as he told the Commons he understood the disappointment and anger that would follow his verdict.

He said there was no alternative as lawyers told him his challenge would fail.

Pix supplied as a technical service by Tim Stewart News Limited 07932745508. No inferred o